<!DOCTYPE html>
<html
        lang="zh"
        xmlns="http://www.w3.org/1999/xhtml"
        xmlns:th="https://www.thymeleaf.org"
        xmlns:sec="https://www.thymeleaf.org/thymeleaf-extras-springsecurity5"
>
<head>
    <meta charset="UTF-8">
    <title>Index</title>
    <link
            rel="stylesheet"
            href="/webjars/bootstrap/css/bootstrap.min.css"
            th:href="@{/webjars/bootstrap/css/bootstrap.min.css}"
    />
</head>
<body>
<div class="container">
    <h1>Hello world</h1>
</div>
</body>

<script src="/webjars/jquery/3.5.1/jquery.slim.min.js"></script>
<script src="/webjars/bootstrap/4.5.0/js/bootstrap.bundle.min.js"></script>
</html>